Drive fastener shank



FIG. 1 is a perspective view of a drive fastener shank showing my new design;

FIG. 2 is a front elevational view thereof, the head and point being shown in broken lines for illustrative purposes only;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevational view taken from the right of FIG. 2, the side opposite being a mirror image thereof;

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a drive fastener shank, substantially as shown and described. 